Home / 86,680.92-130,040.28-26,709.60

Finding the Fourth Proportional to 86,680.92, 130,040.28 and 26,709.60

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Solution

The fourth proportional to 86,680.92, 130,040.28 and 26,709.60 is: 40,070.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,680.92 : 130,040.28 = 26,709.60 : x
  2. Step 2: Convert to fraction form
    86,680.92/130,040.28 = 26,709.60/x
  3. Step 3: Cross multiply
    86,680.92x = 130,040.28 × 26,709.60
  4. Step 4: Simplify right side
    86,680.92x = 3,473,323,862.69
  5. Step 5: Solve for x
    x = 3,473,323,862.69/86,680.92
  6. Step 6: Final answer
    x = 40,070.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.